10L80 Overhaul Kit 2017-2022, new and ready to install. Fits the 10L80. Ships fast from the USA.
This overhaul kit is for rebuilding a GM 10L80 ten-speed from the 2017-2022 production window, the transmission in the Silverado 1500, Sierra 1500, Tahoe, Suburban, Yukon and Escalade of those years. It is the gasket and seal set for the job: the parts that keep every clutch circuit sealed after you take the unit apart. People shopping for it usually have a truck that slips when hot, engages late on a cold morning, leaks at the pan or case, or has already been torn down for a clutch or drum failure. The package shown is a Precision International overhaul kit.
The 10L80 has six clutch packs and four planetary gearsets, and every gear change hands torque from one clutch to the next with only a fraction of a second of overlap. That only works when each piston gets its full apply pressure. Pressure gets from the pump and valve body to the pistons through sealing rings on the rotating shafts, lip seals on each piston, and the gaskets and O-rings at the case, pump and valve body. After high mileage and heat, those rubber and Teflon parts harden and wear, the circuits bleed off pressure, and the TCM adapts until it runs out of room. An overhaul kit replaces those sealing parts in one purchase so you are not reusing tired seals on a unit you have already paid to open.
Many 10L80 complaints are electrical or hydraulic and do not need a full rebuild. A worn pump or main pressure regulator can cause late engagement, and valve body wear on 2019-and-later units can set codes and drop the truck into a default gear. Read the 10L80 pump failure guide and the 10L80 valve body guide before you commit to an overhaul. If the fluid is burnt and the pan is full of friction material, the unit is coming apart anyway, and this kit is where the rebuild starts.
This listing covers 10L80 transmissions from 2017 through 2022. That window includes both Generation 1 units and the Generation 2 units GM introduced around late 2019, when it changed the valve body and some clutch regulation parts. Seal kits for the two generations are close but may not be identical, and transmissions with shift-by-wire or auto stop-start can differ again. Read your RPO code from the label on the driver door pillar and confirm your generation, or send us your year and VIN and we will check it before it ships. If your truck is a 2020-or-later build, also compare our 10L80 overhaul kit for 2020-2026. Everything else for this unit is on the 10L80 and 10L90 parts page.
| Fits | 10L80 2017-2022 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | GM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Plan on it being a gasket and seal kit. Overhaul kits cover the sealing parts; frictions and steels usually come in a master or banner rebuild kit. Ask us before ordering if you need to know the exact contents.
It is listed for 2017-2022 10L80 units, but 2020-and-later trucks are often Generation 2. Check your RPO code on the door pillar label or send us your VIN, and compare our 2020-2026 kit as well.
We sell a separate 10L90 overhaul kit. The two units are closely related, but match the kit to your transmission model to avoid seal differences.
Dexron ULV. GM lists about 8.1 quarts for a 10L80 fluid change; a fully rebuilt dry unit needs more, so fill and check the level hot by the factory procedure.
Yes. Clear the transmission adaptive values and perform the GM fast learn with a scan tool. Without it the TCM keeps old clutch fill values, and shifts can feel harsh or flare.
Frictions, steels and the filter at minimum. Inspect the bushings, drums and pump gears, and look at the valve body for bore wear while it is out.
